package jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;

/**
 * 向表中插入一条记录
 */
public class Demo2 {
    public static void main(String[] args) throws Exception {
        /*
        //1.加载驱动(每种数据库驱动的类名和包名都是固定的)
        Class.forName("com.mysql.cj.jdbc.Driver");

        //2.通过驱动管理器建立链接 DriverManaher.getConnection()
        Connection connection = DriverManager.getConnection(//  本机地址：端口好/数据库
                "jdbc:mysql://localhost:3306/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
                "root",
                "root");
        System.out.println("与数据库建立链接！");
        */



        Connection connection = DBUtil.getConnection();
        //3.通过连接对象创建执行语句对象Statement
        Statement statement = connection.createStatement();

        /*
        向user表中插入一条记录
        INSERT INTO user(username,password,age)
            VALUES ('张三','123456','阿三',22)
         */
        String sql = "INSERT INTO user(username,password,nickname,age)\n" +
                "VALUES ('张三','123456','阿三',22)";
        int num=statement.executeUpdate(sql);
        System.out.println("插入完毕，影响了表中："+num+"条记录");
        connection.close();
    }
}
